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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: namingservice.cxx,v $
 * $Revision: 1.9 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_stoc.hxx"

#include <hash_map>
#include <osl/mutex.hxx>
#include <osl/diagnose.h>
#include <uno/dispatcher.h>
#include <uno/mapping.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/component.hxx>
#include <cppuhelper/implbase2.hxx>
#ifndef _CPPUHELPER_IMPLEMENTATIONENTRY_HXX_
#include <cppuhelper/implementationentry.hxx>
#endif

#include <com/sun/star/uno/XNamingService.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>

using namespace cppu;
using namespace rtl;
using namespace osl;
using namespace std;

using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::registry;

#define SERVICENAME "com.sun.star.uno.NamingService"
#define IMPLNAME	"com.sun.star.comp.stoc.NamingService"

namespace stoc_namingservice
{
static rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;

static Sequence< OUString > ns_getSupportedServiceNames()
{
    static Sequence < OUString > *pNames = 0;
    if( ! pNames )
    {
        MutexGuard guard( Mutex::getGlobalMutex() );
        if( !pNames )
        {
            static Sequence< OUString > seqNames(1);
            seqNames.getArray()[0] = OUString(RTL_CONSTASCII_USTRINGPARAM(SERVICENAME));
            pNames = &seqNames;
        }
    }
    return *pNames;
}

static OUString ns_getImplementationName()
{
    static OUString *pImplName = 0;
    if( ! pImplName )
    {
        MutexGuard guard( Mutex::getGlobalMutex() );
        if( ! pImplName )
        {
            static OUString implName( RTL_CONSTASCII_USTRINGPARAM( IMPLNAME ) );
            pImplName = &implName;
        }
    }
    return *pImplName;
}

struct equalOWString_Impl
{
  sal_Bool operator()(const OUString & s1, const OUString & s2) const
        { return s1 == s2; }
};

struct hashOWString_Impl
{
    size_t operator()(const OUString & rName) const
        { return rName.hashCode(); }
};

typedef hash_map
<
    OUString,
    Reference<XInterface >,
    hashOWString_Impl,
    equalOWString_Impl
> HashMap_OWString_Interface;

//==================================================================================================
class NamingService_Impl
    : public WeakImplHelper2 < XServiceInfo, XNamingService >
{
    Mutex								aMutex;
    HashMap_OWString_Interface			aMap;
public:
    NamingService_Impl();
    ~NamingService_Impl();

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName()
    throw(::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName )
    throw(::com::sun::star::uno::RuntimeException);
    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames()
    throw(::com::sun::star::uno::RuntimeException);
    static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static()
    {
        OUString aStr( OUString::createFromAscii( SERVICENAME ) );
        return Sequence< OUString >( &aStr, 1 );
    }

    virtual ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > SAL_CALL getRegisteredObject( const ::rtl::OUString& Name ) throw(Exception, RuntimeException);
    virtual void SAL_CALL registerObject( const ::rtl::OUString& Name, const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& Object ) throw(Exception, RuntimeException);
    virtual void SAL_CALL revokeObject( const ::rtl::OUString& Name ) throw(Exception, RuntimeException);
};

//==================================================================================================
static Reference<XInterface> SAL_CALL NamingService_Impl_create( const Reference<XComponentContext> & )
{
    return *new NamingService_Impl();
}

//==================================================================================================
NamingService_Impl::NamingService_Impl()
{
    g_moduleCount.modCnt.acquire( &g_moduleCount.modCnt );
}

//==================================================================================================
NamingService_Impl::~NamingService_Impl()
{
    g_moduleCount.modCnt.release( &g_moduleCount.modCnt );
}

// XServiceInfo
OUString NamingService_Impl::getImplementationName()
    throw(::com::sun::star::uno::RuntimeException)
{
    return ns_getImplementationName();
}

// XServiceInfo
sal_Bool NamingService_Impl::supportsService( const OUString & rServiceName )
    throw(::com::sun::star::uno::RuntimeException)
{
    const Sequence< OUString > & rSNL = getSupportedServiceNames();
    const OUString * pArray = rSNL.getConstArray();
    for ( sal_Int32 nPos = rSNL.getLength(); nPos--; )
    {
        if (pArray[nPos] == rServiceName)
            return sal_True;
    }
    return sal_False;
}

// XServiceInfo
Sequence< OUString > NamingService_Impl::getSupportedServiceNames()
    throw(::com::sun::star::uno::RuntimeException)
{
    return ns_getSupportedServiceNames();
}

// XServiceInfo
Reference< XInterface > NamingService_Impl::getRegisteredObject( const OUString& Name ) throw(Exception, RuntimeException)
{
    Guard< Mutex > aGuard( aMutex );
    Reference< XInterface > xRet;
    HashMap_OWString_Interface::iterator aIt = aMap.find( Name );
    if( aIt != aMap.end() )
        xRet = (*aIt).second;
    return xRet;
}

// XServiceInfo
void NamingService_Impl::registerObject( const OUString& Name, const Reference< XInterface >& Object ) throw(Exception, RuntimeException)
{
    Guard< Mutex > aGuard( aMutex );
    aMap[ Name ] = Object;
}

// XServiceInfo
void NamingService_Impl::revokeObject( const OUString& Name ) throw(Exception, RuntimeException)
{
    Guard< Mutex > aGuard( aMutex );
    aMap.erase( Name );
}

}

using namespace stoc_namingservice;
static struct ImplementationEntry g_entries[] =
{
    {
        NamingService_Impl_create, ns_getImplementationName,
        ns_getSupportedServiceNames, createSingleComponentFactory,
        &g_moduleCount.modCnt , 0
    },
    { 0, 0, 0, 0, 0, 0 }
};

extern "C"
{
sal_Bool SAL_CALL component_canUnload( TimeValue *pTime )
{
    return g_moduleCount.canUnload( &g_moduleCount , pTime );
}

//==================================================================================================
void SAL_CALL component_getImplementationEnvironment(
    const sal_Char ** ppEnvTypeName, uno_Environment ** )
{
    *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}
//==================================================================================================
sal_Bool SAL_CALL component_writeInfo(
    void * pServiceManager, void * pRegistryKey )
{
    return component_writeInfoHelper( pServiceManager, pRegistryKey, g_entries );
}
//==================================================================================================
void * SAL_CALL component_getFactory(
    const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
{
    return component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
}
}